Limit a double to two decimal places without trailing zeros
Try adding the following line, when configuring your formatter: [doubleValueWithMaxTwoDecimalPlaces setMaximumFractionDigits:2];
decimal
Rounding off decimals in Django
If you don’t care about the commas, then floatformat will do the job: {{ value|floatformat:”0″ }} If you do care about commas, you want: {{ value|floatformat:”0″|intcomma }} (Hat tip to Stephen for pointing me at intcomma!)
Is floating point precision mutable or invariant?
The precision is fixed, which is exactly 53 binary digits for double-precision (or 52 if we exclude the implicit leading 1). This comes out to about 15 decimal digits. The OP asked me to elaborate on why having exactly 53 binary digits means “about” 15 decimal digits. To understand this intuitively, let’s consider a less-precise … Read more
Regex in JavaScript for validating decimal numbers
Try the following expression: ^\d+\.\d{0,2}$ If you want the decimal places to be optional, you can use the following: ^\d+(\.\d{1,2})?$ EDIT: To test a string match in Javascript use the following snippet: var regexp = /^\d+\.\d{0,2}$/; // returns true regexp.test(‘10.5’)
Is there a reliable way in JavaScript to obtain the number of decimal places of an arbitrary number?
Historical note: the comment thread below may refer to first and second implementations. I swapped the order in September 2017 since leading with a buggy implementation caused confusion. If you want something that maps “0.1e-100” to 101, then you can try something like function decimalPlaces(n) { // Make sure it is a number and use … Read more
How to multiply in Javascript? problems with decimals
.toFixed() is best solution.It will keep only two digits after dot. Exp 1: var value = 3.666; value.toFixed(2); //Output : 3.67 Exp 2: var value = 3.0000; value.toFixed(2); //Output : 3.00
Python: Remove division decimal
You can call int() on the end result: >>> int(2.0) 2
What is a good mapping of .NET decimal to SQL Server decimal?
Fluent nHibernate maps System.Decimal as decimal(19, 5)
C++ decimal data types
The classes from the Decimal TR are not implemented for all compilers. Some compilers, e.g., gcc, implement the C Decimal TR and provide the corresponding extensions in C++, too. In the past there was an open source implementation for the C++ Decimal TR available but I failed to locate it. If your compiler doesn’t support … Read more